제출 #233515

#제출 시각아이디문제언어결과실행 시간메모리
233515thecodingwizard경찰관과 강도 (BOI14_coprobber)C++11
100 / 100
579 ms7184 KiB
#include <bits/stdc++.h> using namespace std; #include "coprobber.h" #define ll long long #define FOR(i, a, b) for (int i = (a); i < (b); i++) #define F0R(i, b) FOR(i, 0, b) #define ii pair<int, int> #define pA first #define pB second int n; bool adj[500][500]; int ct[500][500]; int nextStep[500][500]; bool win[500][500]; int adjCt[500]; int curPos = 0; int start(int N, bool A[MAX_N][MAX_N]) { n = N; F0R(i, n) { adjCt[i] = 0; F0R(j, n) { adj[i][j] = A[i][j]; if (A[i][j]) adjCt[i]++; ct[i][j] = 0; } } queue<pair<int, ii>> q; F0R(i, n) { q.push({0,{i,i}}); q.push({1,{i,i}}); win[i][i] = true; } while (!q.empty()) { pair<int, ii> u = q.front(); q.pop(); if (u.pA == 1) { // am robber F0R(i, n) { if (adj[i][u.pB.pA] || i==u.pB.pA) { if (!win[i][u.pB.pB]) { win[i][u.pB.pB] = true; nextStep[i][u.pB.pB] = u.pB.pA; q.push({0,{i,u.pB.pB}}); } } } } else { // am cop F0R(i, n) { if (adj[i][u.pB.pB]) { ct[u.pB.pA][i]++; if (ct[u.pB.pA][i] == adjCt[i]) { q.push({1,{u.pB.pA,i}}); } } } } } F0R(i, n) { if (!win[0][i]) return -1; } return 0; } int nextMove(int R) { return curPos = nextStep[curPos][R]; }
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